Experimental study for lateral gasoline-air venting explosion in cylindrical pipeline

Wu Songlin; Du Yang; Ou Yihong; Zhang Peili; Liang Jianjun

doi:10.11883/1001-1455(2016)05-0680-08

Volume 36 Issue 5

Oct. 2018

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Wu Songlin, Du Yang, Ou Yihong, Zhang Peili, Liang Jianjun. Experimental study for lateral gasoline-air venting explosion in cylindrical pipeline[J]. Explosion And Shock Waves, 2016, 36(5): 680-687. doi: 10.11883/1001-1455(2016)05-0680-08

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Wu Songlin, Du Yang, Ou Yihong, Zhang Peili, Liang Jianjun. Experimental study for lateral gasoline-air venting explosion in cylindrical pipeline[J]. Explosion And Shock Waves, 2016, 36(5): 680-687. doi: 10.11883/1001-1455(2016)05-0680-08

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Experimental study for lateral gasoline-air venting explosion in cylindrical pipeline

doi: 10.11883/1001-1455(2016)05-0680-08

1.
Department of Petroleum Supply Engineering, Logistical Engineering University, Chongqing 401311, China
2.
Department of Fundamental Studies, Logistical Engineering University, Chongqing 401311, China

Received Date: 2015-03-04
Rev Recd Date: 2015-06-10
Publish Date: 2016-09-25

Abstract

Abstract

Gasoline-air, being composed of combustible components, is apt to brings about explosion accidents. In order to study the laws governing its venting explosion in a confined space, we carried out visualization experiments on a single pore and double pores laterally situated along the shell of a cylindrical pipeline with different gasoline-air volume fractions, obtained some flame characteristics of outflow field and regularities of explosion overpressure for the pipeline's internal and external flow, and found out the four stages of the venting explosion including the flam eventing from the pore, the mushroom-cloud forming, the gradual violent burning and extinguishing. Through a comparative analysis of the data of explosion overpressure, we found that the external maximum overpressure of the double pores was several times larger than that of the single pore, and that the farther away from the ignition end, the bigger the maximum overpressure of the internal flow field.
- mechanics of explosion,
- venting explosion,
- overpressure,
- gasoline-air,
- cylindrical pipeline

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References(18)

References

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